Improvement in fire-places



1. ADAIR.

Fire-Place. N0,l65,194,` Paftentedluly 6,1875.

UNITED STATES PATENT OEEIOE.

JAMES ADAIE, OE KILLBUCK TOWNSHIP, (PITTSBUEG` P. 0.,)

COUNTY, PENNSYLVANIA.,

IMPRCVEMENT IIN FIRE-PLACES. t

Specification forming part of Letters Patent No. 165.194, dated `July 6,1875; application filed To all whom it may concern:

' Be it known that I, JAMES ADAIR, of Killbuck township, (Pittsburg P.0.,) State of Pennsylvania, have invented an Improvement in Fire-Places,of which the following is a specication: f

The object of my invention is to control the lpanying drawing, extendingfrom the interior of an ordinary ash-pit, B, Figs. l and 2, thence pastthe rear of a low-down7 grate, G, Figs.

2 and 3, and its tile D, Figs. l, 2, and `3,'into a chimney-Hue, E, Fig.2, in combination with a Valve or damper, F, Figs. 2, 3, and ,4,balanced on trunnions, Which turn in suitable bearings of a frame, G,Fig. 4, closely fitted into the said dust-flue A, Fig. 2. To the uppersurface of said valve F, Figs. 2, 3, 4, is centrally aflixed aperforated lug or ear, made to `turn on the hooked end of a thrustingvalverod, H, Figs. 2, 3, 4, which passes througha central hole in theupper part of a re-place `frame I, Figl, thence out into the room,

where it terminates in an ornamental handle or knob, by which it isoperated. The principal outlet Or passage from the interior of theash-pit B, Figs. 1 and 2, to the chimney-due E, Fig. 2, is directlythrough the low-down F grate t), Figs. 2 and 3, as usual; but thesecondary outlet A, Fig. 2, may extend past the ends of the grate C,Figs. 2 and 3, instead of `the rear, the'valve-rod H, Figs. 2, 3, 4, tobe located accordingly. The ash-pit B, Figs. l and 2, is supplied withair from-the cellar or from Outdoors by suitable registers, openings, orpipes near the upper part, which should March l., 1875.

not admit more air than can pass the valve F, Figs. 2, 3, 4, when it iswide open. The Operation is as follows: By pushing in the valverod H thevalve F closesand the air entering the ashpit B passes through the fuelin the grate C, but by drawing out the valverod H the air passes behindthe fuelpast the open) valve F, and up the chimney. By Opeliing thevalve, as described, before raking the fire the ashes are sucked intothe ash-pit, and, the air-current being continuous, the gratebars arekept cool.

The inode heretofore employed to check the fire in a low-down graterequired an air-tight `ash-pit and the grate to be on the rst door to beeffective. lt having proven practically iinpossible to make ash-pitsair-tight, most lowdown grates have been unmanageable, but by myinvention the grate canbe used and controlled on any door of a house,while air freely F enters the ash-pit, with which the grate isconnected.

I know a dust-flue constructed behind a grate is au Old invention; alsothat an ash-pit with a grate arranged above it has been made tocommunicate with the room by a damper in the hearth in front of thegrate for regulating the draft.

I claim as my invention- In combination with an air-supplying ashpit, atire-chamber, an interposed low-down grate, and an independent ilueleading fromV such ash-pit past'the lire-chamber into the chimney, andprovided With adarnper, all arranged substantially as set forth,whereby, when the damper is open, the main line of draft shall be upsuoli independent ilue, but when closed Shall be throughthe lire.

JAMES ADAIR. Witnesses:

R. G. HOPE, SAML. W. HAY.

ALLEGHENY

